104040405020 has 48 divisors (see below), whose sum is σ = 221428958688. Its totient is φ = 41058297600.

The previous prime is 104040405013. The next prime is 104040405031. The reversal of 104040405020 is 20504040401.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 104040404983 and 104040405001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480662 + ... + 662658.

It is an arithmetic number, because the mean of its divisors is an integer number (4613103306).

Almost surely, 2^104040405020 is an apocalyptic number.

104040405020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104040405020 is an abundant number, since it is smaller than the sum of its proper divisors (117388553668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104040405020 is a wasteful number, since it uses less digits than its factorization.

104040405020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182390 (or 182388 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 104040405020 its reverse (20504040401), we get a palindrome (124544445421).

The spelling of 104040405020 in words is "one hundred four billion, forty million, four hundred five thousand, twenty".